/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 */

import { HttpResponse } from '@angular/common/http';

export class MultipartUtils {
    extractMultipartPlainTextContent(resp: HttpResponse<string>): string[] {
        const boundary = this.getBoundary(resp);
        const parts = resp.body.split(boundary);
        parts.shift();
        parts.pop();
        return parts.map(part => part.replace('Content-Type: text/plain', ''));
    }

    getBoundary(resp: HttpResponse<string>) {
        return (
            '--' +
            this.getContentType(resp).split(';')[1].replace('boundary=', '')
        );
    }

    getContentType(resp: HttpResponse<string>) {
        return resp.headers.get('Content-type');
    }
}
